
Modrinth · Minecraft mod
DupeTrigger
Adds a keybind to dupe the items you're holding!
Quick answer
Which DupeTrigger release should I use?
DupeTrigger 1.0.2 targets 26.1, 26.1.1, 26.1.2 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is DupeTrigger required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does DupeTrigger 1.0.2 need?
1.0.2. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add DupeTrigger without breaking your instance.
Built for DupeTrigger 1.0.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.2. It targets 26.1, 26.1.1, 26.1.2 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0.2. It opens that exact file at the source.
About this project
What does DupeTrigger add?
Dupe Trigger
This mod allows you to double the count of the item you're currently holding with a single keybind.
Features
- Keybind to double item count - press a key to instantly double the amount of the item in your hand.
- Duping past 64 - stacks aren't capped at 64, so you can keep doubling all the way up to the integer limit (2,147,483,647).
- Readable large numbers - once a stack hits 1,000 or more, the count is shortened for readability:
1000→1K500,000→500K1,000,000→1M- Up to
2B(the max possible due to the integer limit)
- Exact count tooltip - hover over any item with a shortened count (1K and above) to see a tooltip that shows the exact item count.
- Auto-scaling text - the count label shrinks to fit within the slot, so even something like
999Mstays within the slot.
Usage
- Hold the item you want to duplicate.
- Press the
Dupekeybind (default:Right Alt, configurable in Controls settings). - The held stack's count doubles.
Notes
This mod is both clientside and serverside.
- Multiplayer - the mod must be installed on both the server and the client for players to use it.
- Singleplayer - just install it normally.
Cheats do not need to be enabled for players to dupe items.
Credits
- Built from scratch with no external dependencies.
- Reference from the Stackable mod - several formatting/display concepts (number shortening, tooltip display, text scaling) were adapted from their approach, with thanks to the original author. This mod only implements the features needed.
Project description from Modrinth.
Pick your setup
DupeTrigger by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.4
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
DupeTrigger versions and loaders
1.0.2
dupetrigger-1.0.2-fabric-26.x.jar
2 Sept 2026
1.0.1
dupetrigger-1.0.1-fabric-26.x.jar
11 Jul 2026
1.0.0
dupetrigger-1.0.0-fabric-26.2.jar
10 Jul 2026
1.0.0
dupetrigger-1.0.0.jar
28 Apr 2025
Looking for an older file? The official Modrinth project page is in Resources.